Evidence map›Paper›PMID 25378387›Full record

ArticleThe Journal of biological chemistry2014

Chrysanthemyl diphosphate synthase operates in planta as a bifunctional enzyme with chrysanthemol synthase activity.

Ting Yang, Liping Gao, Hao Hu, Geert Stoopen, Caiyun Wang, Maarten A Jongsma

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.0field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Plant terpene specialized metabolism: complex networks or simple linear pathways?The Plant journal : for cell and molecular biology · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Overexpression ofPlants (Basel, Switzerland) · 2022
    Article
  11. Article
  12. Review
  13. Complete genome sequence of a boxwood endophyteBiotechnology reports (Amsterdam, Netherlands) · 2020
    Article
  14. A Trichome-Specific, Plastid-LocalizedFrontiers in plant science · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Ting YangFrom Business Unit PRI-Bioscience, Wageningen UR, P.O. Box 16, 6700 AA Wageningen, The Netherlands, the Laboratory of Entomology, Wageningen UR, P.O. Box 8031, 6700 EH Wageningen, The Netherlands, the Laboratory of Plant Physiology, Wageningen UR, P.O. Box 658, 6700 AR Wageningen, The Netherlands, and.
Liping GaoFrom Business Unit PRI-Bioscience, Wageningen UR, P.O. Box 16, 6700 AA Wageningen, The Netherlands.
Hao Huthe Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.
Geert StoopenFrom Business Unit PRI-Bioscience, Wageningen UR, P.O. Box 16, 6700 AA Wageningen, The Netherlands.
Caiyun Wangthe Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.
Maarten A JongsmaFrom Business Unit PRI-Bioscience, Wageningen UR, P.O. Box 16, 6700 AA Wageningen, The Netherlands, maarten.jongsma@wur.nl.
Wageningen University & Research · NLHuazhong Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chrysanthemyl diphosphate synthase (CDS) is the first pathway-specific enzyme in the biosynthesis of pyrethrins, the most widely used plant-derived pesticide. CDS catalyzes c1'-2-3 cyclopropanation reactions of two molecules of dimethylallyl diphosphate (DMAPP) to yield chrysanthemyl diphosphate (CPP). Three proteins are known to catalyze this cyclopropanation reaction of terpene precursors. Two of them, phytoene and squalene synthase, are bifunctional enzymes with both prenyltransferase and terpene synthase activity. CDS, the other member, has been reported to perform only the prenyltransferase step. Here we show that the NDXXD catalytic motif of CDS, under the lower substrate conditions prevalent in plants, also catalyzes the next step, converting CPP into chrysanthemol by hydrolyzing the diphosphate moiety. The enzymatic hydrolysis reaction followed conventional Michaelis-Menten kinetics, with a Km value for CPP of 196 μm. For the chrysanthemol synthase activity, DMAPP competed with CPP as substrate. The DMAPP concentration required for half-maximal activity to produce chrysanthemol was ∼100 μm, and significant substrate inhibition was observed at elevated DMAPP concentrations. The N-terminal peptide of CDS was identified as a plastid-targeting peptide. Transgenic tobacco plants overexpressing CDS emitted chrysanthemol at a rate of 0.12-0.16 μg h(-1) g(-1) fresh weight. We propose that CDS should be renamed a chrysanthemol synthase utilizing DMAPP as substrate.

Indexed as

Alkyl and Aryl TransferasesAmino Acid SequenceBiosynthetic PathwaysChrysanthemum cinerariifoliumMolecular Sequence DataNicotianaPlant ProteinsPlants, Genetically ModifiedTerpenesAlkyl and Aryl TransferaseschrysanthemolPlant ProteinsTerpenesBiosynthesisEnzyme KineticsMutagenesisPlant BiochemistryTerpenoid

Identifiers

PMID25378387
PMCPMC4276892
OpenAlexW1981738343

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.